Amazon has 4-Pack 3M Filtrete AC Furnace Air Filter on sale for for $19.97 -$5.00 when you ‘clip’ the coupon on product page – 5% when you check out via Subscribe & Save = $12.97 ($3.24 each). Shipping is free with Prime or on $25+
Available Sizes:
- 12x12x1 Air Filter $12.97
- 14x14x1 Air Filter $12.97
- 14x20x1 Air Filter
$12.97Coupon No Longer Available
Note: You may cancel Subscribe & Save any time after your order ships.